A 1.54mW/Element 150μm-Pitch-Matched Receiver ASIC with Element-Level SAR/Shared-Single-Slope Hybrid ADCs for Miniature 3D Ultrasound Probes

Conference paper (2019)

Authors

Jing Li University of Electronic Science and Technology of China, Student

Z. Chen Electronic Instrumentation -

M. Tan Electronic Instrumentation -

Douwe Van Willigen Student

C. Chen Transport and Logistics -

Z.Y. Chang Electronic Instrumentation -

E.C. Noothout

N. de Jong , Erasmus MC

M.D. Verweij , Erasmus MC

M.A.P. Pertijs Electronic Instrumentation -

Research Group

Electronic Instrumentation () (TU Delft)

Ultrasound ADC Receiver ASIC

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http://resolver.tudelft.nl/uuid:793e2c7e-4313-4c38-a981-8160be7cd9ce

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Published Date

2019

Language

English

Reuse Rights

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Electronic Instrumentation

Abstract

This paper presents an ultrasound receiver ASIC in 180nm CMOS that enables element-level digitization of echo signals in miniature 3D ultrasound probes. It is the first to integrate an analog front-end and a 10-b Nyquist ADC within the 150 μ m element pitch of a 5-MHz 2D transducer array. To achieve this, a hybrid SAR/shared-single-slope architecture is proposed in which the ramp generator is shared within each 2 × 2 subarray. The ASIC consumes 1.54mW/element and has been successfully demonstrated in an acoustic imaging experiment.

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